The invention provides a power purchase order processing method, platform and device and a storage medium. The power purchase order processing method comprises the steps of obtaining a power purchaseorder initiated by a user; determining whether a power plant matched with the order exists or not; if the power plant matched with the order exists, sending matching success information to a terminaldevice of the user, and displaying a matching result; if the power plant matched with the order does not exist, sending matching failure information to the terminal device and displaying an operationinterface used for re-matching orders; obtaining operation information input by a user based on the operation interface; and performing re-matching on the order according to the operation information.According to the invention, the success rate of order matching can be effectively improved through matching after matching failure. The transaction complexity between the user and the power plant canbe reduced through online transaction. Transaction efficiency is improved. The user does not need to negotiate with the power plant offline. The time spent before transaction is further shortened andenergy is further reduced.